Class 172/781 - SCRAPER BETWEEN FRONT AND REAR GROUND SUPPORTS OF VEHICLE

Subclass of Class 172 - Earth working
Definition: Apparatus in which a scraper is located between spaced front
No. of patents: 34
Last issue date: 11/23/2010

Number	Title	Issue Date
7836967	Cooling system packaging arrangement for a machine A radiator of a cooling system is disposed within an engine compartment, between a rear mounted engine and a cab on a wheeled machine. The remaining components within the engine compartment are arranged such that they are lower in height than the radiator, the engin...	11/23/2010
7575068	Full support bearing for grader circle A full support bearing for a grader circle including a first radial groove in a cylindrical portion of the circle includes a group of inserts forming a second support groove within the first radial groove. It also includes circle supports sized and shaped such that ...	08/18/2009
7178606	Work implement side shift control and method A system for automatically moving a work implement of a work machine includes a position monitoring system configured to track a position of the work implement relative to a mapped landscape and programmable to incorporate an electronic representation of at least on...	02/20/2007
7134227	Adjustable wing plow A plow assembly includes a pair of plow wings which are pivotally mounted at opposite ends of a center plow. Each of the plow wings may pivot between a forwardly angled position and an aligned position. The plow assembly may pivot a trailing plow wing in response to...	11/14/2006
7051819	Means for creating weep holes in a ridge of roadway material A weep hole blade is operably mounted on the heel of the grader blade of a motor grader which is movable between raised and lowered positions with respect to the grader blade to create weep holes or channels in a ridge of roadway material being deposited at the side...	05/30/2006
6915673	Method of rolling worm gear and the worm gear A worm is formed by rolling to reduce the number of processing steps while ensuring the worm accuracy satisfactorily. A work material is positioned between a first rolling die (100) and a second rolling die (101) by rotation of the rolling dies and a s...	07/12/2005
6904978	Slide rail adjustment for grader blade A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferably pressurized by grease and a grease fitting is provided for each cyl...	06/14/2005
6851485	Circle structure of motor grader A circle structure of a motor grader excellent in durability at low maintenance cost. For this purpose, the circle structure includes a drawbar (105), at least one guide shoe (213) attached to the drawbar, an integrated ring-shaped circle gear (211	02/08/2005
6799640	Slide rail adjustment for grader blade A bearing support arrangement for a grader blade uses short stroke hydraulic cylinders to compensate for wear between slide bearings and slide rails of the grader blade. The cylinders are preferrably pressurized by grease and a grease fitting is provided for each cy...	10/05/2004
6364028	Control and method for positioning a tool of a construction apparatus A control system for establishing grade and elevation control for a tool of a construction apparatus for maintaining the vertical position of the tool relative to a reference includes a first ultrasonic transducer configured to be carried by the construct...	04/02/2002
6324775	Folding blade A mid-chassis, underbody plow or scrapper blade is mounted under a vehicle chassis to be folded upwardly for storage when not in use. The blade is also mounted to permit the outer ends of the blade to move vertically. Pneumatic pressure actuators mounted ...	12/04/2001
6269885	Blade height control system for a motorized grader The position of the blade of a motor grader is controlled to maintain a smoothly graded surface even when the grader's front wheels travel over undulating ungraded ground. This is accomplished by sensing the degree to which the grader frame pivots with re...	08/07/2001
6152238	Control and method for positioning a tool of a construction apparatus A control system for establishing grade and elevation control for a tool of a construction apparatus for maintaining the vertical position of the tool relative to a reference includes a first ultrasonic transducer configured to be carried by the construct...	11/28/2000
5782016	Underbody scraping apparatus with pitch control A scraper apparatus is disclosed for mounting under a body of a truck. The apparatus includes a table having a forward and a trailing end. The forward end is pivotally secured to the body of the truck. The arrangement is such that the table is permitted t...	07/21/1998
5743342	Grader circle assembly An improved grader circle for reinforcing the outer surface of a circle. The improved grader circle assembly of the present invention includes a circle defining an outer surface from which two vertical beams extend in an opposing manner. A front reinforce...	04/28/1998
5720353	Apparatus and method for coupling a blade assembly to a vehicle An apparatus for coupling a blade assembly to a vehicle includes a circle assembly having a circle member. The apparatus further includes a plate having a passageway extending therethrough, the circle member being movable relative to the plate. The appara...	02/24/1998
5718295	Ground levelling blade The present invention consists of a mobile device that can be attached to the underside of existing mining machines thus eliminating the large number of ground levelling machines used in the mine, and increasing both air quality and worker productivity. T...	02/17/1998
5687800	Apparatus and method for retaining a grader blade An apparatus for retaining a grader blade includes a support bracket, a first upper retainer secured to the support bracket and a second upper retainer secured to the support bracket. The apparatus also includes a first lower retainer secured to the suppo...	11/18/1997
5667020	Circle and drawbar assembly for a motor grader A blade assembly of a motor grader includes a drawbar frame adapted for mounting to the motor grader and a circle frame adapted for mounting a blade thereto. A number of shoe assemblies are mounted to the drawbar frame in a circular array and support the ...	09/16/1997
5584346	Control system for a motor grader A motor grader includes a work implement operating device which permits operation of a plurality of direction control valve with reduced number of operation levers. The motor grader includes a wheeled body for traveling and carrying at least one work impl...	12/17/1996
5411102	Grader blade attachment for small tractors A grader blade unit is provided for ready attachment to small tractors in place of an underslung mower deck. A grader blade is attached to a turntable for pivotable adjustment to selected angular settings. An extensible draw bar affixed to the turntable h...	05/02/1995
5076370	Mounting assembly for a grader moldboard A mounting frame for a moldboard of a motor grader is provided with first and second retainers having V-shaped notches that cooperate with V-shaped engagement portion located on the mounting rails of the moldboard. Each of the V-shaped notches are provide...	12/31/1991
4206818	Work vehicle and ring bearing arrangement therefor A work vehicle and method for assembling the vehicle with a ring gear that is rotatably supported by a frame of the vehicle through contact only with bearing strips which maintain the ring gear against movement in any direction other than rotationally abo...	06/10/1980
4148365	Earth working attachment for tractors An attachment for tractors including a pair of elongate support members attached at their forward ends to the tractor frame and at their rearward ends to the tractor's three point hitch arms. A blade assembly is carried by the elongate members and is adju...	04/10/1979
4122903	Motor grader circle drive A motor grader circle drive has an internal spur gear secured to the circle, and the internal gear is driven by one or two barrel worm gears, each of which in turn is driven from a hydraulic motor by an input worm and an input spiral gear keyed to the bar...	10/31/1978
4113032	Motor grader with draw bar and circle support structure A motor grader is provided with a unitary circle drawbar and circle mounting structure in which the drawbar is a box-like beam which increases in width from front to rear, with the rearward portions of the beam top and side plates forming the forward part...	09/12/1978
4105078	Motor grader blade support with self-retaining wear strips Structure for fastening the blade of a motor grader to a support carried on the vehicle while enabling sideward sliding movement of the blade includes support brackets each of which has a slot for receiving a slide rail that is secured along the back of t...	08/08/1978
4103474	Three point hitch apparatus for supporting an implement underneath a tractor A three-point mounting hitch for supporting an implement beneath a tractor and between the front and rear wheels thereof includes an upright rear frame member connectible with the tractor three-point hitch and a horizontal implement supporting frame membe...	08/01/1978
4099577	Work vehicle and ring gear bearing arrangement therefor A ring gear bearing arrangement for motorgraders and method for assembling the vehicle with a ring gear that is rotatably supported by a frame of the vehicle through contact only with organic plastic bearing strips which maintain the ring gear against mov...	07/11/1978
4074767	Motor grader support structure and side shift mechanism An improved support for mounting the grader blade assembly of a motor grader on depending support arms of the motor grader circle. A bearing housing structure which is several times wider than the height of the blade assembly consists of a transverse holl...	02/21/1978
4064947	Draw bar for a motor grader Motor graders have a longitudinal main frame which carries a circle mounting bar that pivots on a horizontal axis at a connecting end and that has a carrying portion remote from its connecting end. A circle rotates on a vertical axis on the mounting bar c...	12/27/1977
4058174	Motor grader with blade support and bearing assembly An improved support and bearing for mounting the grader blade assembly of a motor grader on the depending support arms of the motor grader circle. Upright bearing housings are mounted on the arms and positioned forward thereof. Each housing has a forwardl...	11/15/1977
4007958	Pivoted window for cab of motor vehicle A motor vehicle has a cab that has forward observation windows in the front wall on opposite sides of the main frame below the windshield, and an access door at one side with cab side windows in the door and on the opposite side. A pivoted, outwardly open...	02/15/1977
4004641	Motor grader drawbar assembly with safety clutch mechanism The motor grader drawbar assembly has a blade mounted on a circle gear and a drive gear selectively rotates the circle gear and the blade via a pinion gear engaged with the circle gear and mounted on a rotatable shaft. A slip clutch is interposed between ...	01/25/1977

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Class 172/781 - SCRAPER BETWEEN FRONT AND REAR GROUND SUPPORTS OF VEHICLE